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Accounts and Transactions with Related Parties - Additional Information (Detail) $ in Millions | 12 Months Ended |
--- | --- | ---
Dec. 31, 2017 USD ($) ft² | Dec. 31, 2016 USD ($)
Desarrollo inmobiliario del este, S. A. [member] | Desarrollo inmobiliario [member] |  |
Disclosure of transactions between related parties [line items] |  |
Approximate area of building | ft² | 121,686 |
Number of lease floor | Five |
Corporacion de inversiones areas, S. A [member] | Desarrollo inmobiliario [member] | Class B shares [member] |  |
Disclosure of transactions between related parties [line items] |  |
Percentage of ownership | 100.00% |
Executive officers [member] |  |
Disclosure of transactions between related parties [line items] |  |
Future payments pursuant to a non-compete agreement | $ 3.1 |
Petroleos delta, S. A. [member] |  |
Disclosure of transactions between related parties [line items] |  |
Contract agreement term | Two years |
Guarantee deposits | $ 11.8 | $ 7.0
The last contract subscribed | June, 2016 |

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- Definition Area of building. + References No definition available. + Details
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- Definition Contract agreement term. + References No definition available. + Details
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- Definition Future payments pursuant to a non-compete agreement. + References No definition available. + Details
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- Definition Guarantee deposits. + References No definition available. + Details
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- Definition Number of lease floor. + References No definition available. + Details
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Period Type: | duration

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- Definition Percentage of ownership interest. + References No definition available. + Details
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Balance Type: | na
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- Definition The last contract subscribed. + References No definition available. + Details
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Period Type: | duration

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- Definition Line items represent concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes of the table. + References No definition available. + Details
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- Details
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Namespace Prefix: |
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Balance Type: |
Period Type: |

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- Details
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Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

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- Details
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- Details
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- Details
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Namespace Prefix: |
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Balance Type: |
Period Type: |

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- Details
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Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |